import axios from 'axios'
import { Message } from 'element-ui'
import store from '@/store'

// create an axios instance
const service = axios.create({
  baseURL: process.env.NODE_ENV === 'production'? '' : '/api', // url = base url + request url
  // withCredentials: true, // send cookies when cross-domain requests
  transformRequest: [
    function(data) {
      if (data && data.ossUrl) {
        let ret = ''
        for (const it in data) {
          ret += encodeURIComponent(it) + '=' + encodeURIComponent(data[it]) + '&'
        }
        ret = ret.substring(0, ret.lastIndexOf('&'))
        return ret
      } else {
        return JSON.stringify(data)
      }
    }
  ],
  timeout: 60000 // request timeout
})

// request interceptor
service.interceptors.request.use(
  config => {
    console.log(config)
    return config
  },
  error => {
    // do something with request error
    console.log(error) // for debug
    return Promise.reject(error)
  }
)

// response interceptor
service.interceptors.response.use(
  /**
   * If you want to get http information such as headers or status
   * Please return  response => response
  */

  /**
   * Determine the request status by custom code
   * Here is just an example
   * You can also judge the status by HTTP Status Code
   */
  response => {
    const res = response.data
    // if the custom code is not 20000, it is judged as an error.
    if (res.code !== 0) {
      Message({
        message: res.msg || 'Error',
        type: 'error',
        duration: 3000
      })

      if (res.code === 0 && res.statusCode === -1) {
        store.dispatch('user/resetToken').then(() => {
          location.reload()
        })
      }

      return Promise.reject(res)
      // 50008: Illegal token; 50012: Other clients logged in; 50014: Token expired;
      // if (res.code === 50008 || res.code === 50012 || res.code === 50014) {
      //   // to re-login
      //   MessageBox.confirm('You have been logged out, you can cancel to stay on this page, or log in again', 'Confirm logout', {
      //     confirmButtonText: 'Re-Login',
      //     cancelButtonText: 'Cancel',
      //     type: 'warning'
      //   }).then(() => {
      //     store.dispatch('user/resetToken').then(() => {
      //       location.reload()
      //     })
      //   })
      // }
    } else {
      return res
    }
  },
  error => {
    console.log('err' + error) // for debug
    Message({
      message: error.message,
      type: 'error',
      duration: 3000
    })
    return Promise.reject(error)
  }
)

export default service
